Eduprobe
Question:
The figure shows the variation of specific heat capacity (C) of a solid as a function of temperature (T). The temperature is increased continuously from 0 to 500K at a constant rate. Ignoring any volume change, the following statement(s) is (are) correct to a reasonable approximation: the rate at which heat is absorbed in the range 0-500K varies linearly with temperature T; heat absorbed in increasing the temperature from 0-500K is less than the heat required for increasing the temperature from 400K; there is no change in the rate of heat absorption in range 400K; the rate of heat absorption increases in the range 200K.
the rate of heat absorption increases in the range 200K.
the rate at which heat is absorbed in the range 0-500K varies linearly with temperature T.
heat absorbed in increasing the temperature from 0-500K is less than the heat required for increasing the temperature from 400K.
there is no change in the rate of heat absorption in range 400K.
Solution:
Sol. (A, B, C, D)
Option (A) is correct because the graph between (0-500K) appears to be a straight line upto a reasonable approximation.
Option (B) is correct because area under the curve in the temperature range (0-100 K) is less than in range (400K).
Option (C) is correct because the graph of C versus T is constant in the temperature range (400K)
Option (D) is correct because in the temperature range (200K) specific heat capacity increases with temperature.